@nutui/nutui-react-taro
Version:
京东风格的轻量级移动端 React 组件库，支持一套代码生成 H5 和小程序
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JavaScript
import { _ as _object_spread } from "@swc/helpers/_/_object_spread";
import { _ as _object_spread_props } from "@swc/helpers/_/_object_spread_props";
import { _ as _object_without_properties } from "@swc/helpers/_/_object_without_properties";
import { _ as _sliced_to_array } from "@swc/helpers/_/_sliced_to_array";
import { _ as _to_consumable_array } from "@swc/helpers/_/_to_consumable_array";
import React, { useEffect, useCallback, useRef, useState } from "react";
import { View, Text } from "@tarojs/components";
import { createSelectorQuery } from "@tarojs/taro";
import { ComponentDefaults } from "../../utils/typings";
import { mergeProps } from "../../utils/merge-props";
var defaultProps = _object_spread_props(_object_spread({}, ComponentDefaults), {
length: 0,
value: '',
delay: 300,
duration: 1,
thousands: false
});
export var CountUp = function(props) {
var _mergeProps = mergeProps(defaultProps, props), length = _mergeProps.length, value = _mergeProps.value, delay = _mergeProps.delay, duration = _mergeProps.duration, className = _mergeProps.className, thousands = _mergeProps.thousands, style = _mergeProps.style, rest = _object_without_properties(_mergeProps, [
"length",
"value",
"delay",
"duration",
"className",
"thousands",
"style"
]);
var classPrefix = 'nut-countup';
var countupRef = useRef(null);
var timerRef = useRef();
var numbers = Array.from({
length: 10
}, function(v, i) {
return i;
});
var getShowNumber = useCallback(function() {
var splitArr = value.split('.');
var intNumber = length && splitArr[0].length < length ? (Array(length).join('0') + splitArr[0]).slice(-length) : splitArr[0];
var currNumber = "".concat(thousands ? intNumber.replace(/(\d)(?=(?:\d{3})+$)/g, '$1,') : intNumber).concat(splitArr[1] ? '.' : '').concat(splitArr[1] || '');
return currNumber.split('');
}, [
length,
thousands,
value
]);
var _useState = _sliced_to_array(useState([]), 2), numberArr = _useState[0], setNumberArr = _useState[1];
var _useState1 = _sliced_to_array(useState([]), 2), transformArr = _useState1[0], setTransformArr = _useState1[1];
var isLoaded = useRef(false);
var setNumberTransform = useCallback(function() {
if (countupRef.current && numberArr.length) {
createSelectorQuery().selectAll('.nut-countup-listitem').node(function(numberItems) {
var transformArrCache = [];
Object.keys(numberItems).forEach(function(key) {
var elem = numberItems[Number(key)];
var idx = Number(numberArr[Number(key)]);
var enabled = elem && typeof idx === 'number' && !Number.isNaN(idx);
if (enabled) {
// 计算规则：父元素和实际列表高度的百分比，分割成20等份
var transform = idx || idx === 0 ? "translate(0, -".concat((idx === 0 ? 10 : idx) * 5, "%)") : '';
transformArrCache.push({
transitionDuration: "".concat(duration, "s"),
transform: transform
});
}
});
setTransformArr(_to_consumable_array(transformArrCache));
}).exec();
}
}, [
numberArr
]);
useEffect(function() {
if (numberArr.length) {
if (!isLoaded.current) {
isLoaded.current = true;
// @ts-ignore
timerRef.current = setTimeout(function() {
setNumberTransform();
}, delay);
} else {
setNumberTransform();
}
}
return function() {
clearTimeout(timerRef.current);
isLoaded.current = false;
};
}, [
numberArr,
delay,
setNumberTransform
]);
useEffect(function() {
setNumberArr(getShowNumber());
}, [
value,
getShowNumber
]);
return /*#__PURE__*/ React.createElement(View, _object_spread({
className: "".concat(classPrefix, " ").concat(className),
ref: countupRef
}, rest), /*#__PURE__*/ React.createElement(View, {
className: "".concat(classPrefix, "-list")
}, numberArr.map(function(item, idx) {
return /*#__PURE__*/ React.createElement(View, {
className: "".concat(classPrefix, "-listitem ").concat(!Number.isNaN(Number(item)) ? "".concat(classPrefix, "-listitem-number") : ''),
key: idx
}, !Number.isNaN(Number(item)) ? /*#__PURE__*/ React.createElement(View, {
className: "".concat(classPrefix, "-number"),
style: transformArr === null || transformArr === void 0 ? void 0 : transformArr[idx]
}, _to_consumable_array(numbers).concat(_to_consumable_array(numbers)).map(function(number, subidx) {
return /*#__PURE__*/ React.createElement(Text, {
className: "".concat(classPrefix, "-number-text"),
key: subidx
}, number);
})) : /*#__PURE__*/ React.createElement(View, {
className: "".concat(classPrefix, "-separator")
}, item));
})));
};
CountUp.displayName = 'NutCountUp';